Aviation Week reports this week on the successful launch of the AIM-9X air-to-air missile from an underwater launch system.
Spoken of affectionately as part of the "Littoral Warfare Weapon Concept" the AIM-9X could provide submariners with some protection from those pesky helicopters and maritime patrol aircraft that so annoy the submariner.
However, planners are touting it not just as a defense weapon, but also as a weapon to use against high-speed surface ships. If the program proceeds to become a program of record in 2012, it could have an IOC of 2015.
You'll like the acronym for the launch canister, SACS, for Stealthy Affordable Capsule System. SACS can also be used for launching UAV's or communications systems.